Process Development Engineer II, Analytics: Synthetic and Bioconjugation Scale-Up Technologies (SBST)

Regeneron’s Preclinical Manufacturing & Process Development (PMPD) organization in Tarrytown, NY is seeking a highly motivated Process Development Engineer II to join our Synthetic and Bioconjugation Scale-up Technologies (SBST) Analytics group. In this role, you will serve as the analytical lead to develop fit-for-purpose analytical methods to characterize critical intermediates (small molecules, siRNA, and/or peptides) to support our growing and diverse bioconjugate pipeline. You will lead and implement analytical deliverables working closely with cross-functional teams and external collaborators (CDMOs) to advance bioconjugate programs from development to commercialization.

A Typical Day in the Role of Process Development Engineer II Might Look Like:

• Design and execute analytical testing, method development and characterization of critical intermediates to enable bioconjugate development.

• Compile, analyze, and interpret complex datasets; connect key findings across experiments and propose clear, actionable next steps.

• Communicate results and recommendations clearly to technical and non-technical audiences to enable timely, data-driven decisions.

• Serve as the analytical lead for critical intermediates and bioconjugates; coordinate internal and external analytical deliverables (development, transfer, and troubleshooting) to support program milestones.

• Provide technical support and troubleshooting to receiving labs to keep analytical activities off the critical path.

• Author high-quality documentation (e.g., procedures, method development reports, characterization reports, ELN entries) to support program timelines.

• Build and improve business workflows for documentation standardization, data digitization, and sample management.

• Maintain compliance with lab and environmental safety and promote a safe lab culture.

• Support equipment upkeep, troubleshooting, maintain an organized workspace, and proactively plan for lab resources.

• Train and mentor peers and junior team members as needed (directly and/or indirectly).

This Role May Be For You If You:

• Enjoy hands-on lab work and consistently generate high-quality, reproducible data.

• Take initiative, deliver on challenging work, and learn new technologies quickly.

• Have hands-on experience with analytical techniques for synthetic molecules (i.e., peptide, siRNA, and small-molecule) characterization and relevant software’s.

• Possess a customer-centric mindset to analytical development and understand how analytical deliverables enable program decisions across drug development in different phases of the program

• Thrive in a fast-paced, highly collaborative environment working on complex problems.

• Communicate clearly (written and verbal), simplify messages for impact, and build strong working relationships.

• Think critically and apply strong problem-solving skills, and comfortable navigating ambiguity.

This role requires B.S. with 6+ years of relevant experience, or M.S. with 4+ years of relevant experience, in analytical chemistry, biochemistry, biology, chemical engineering, or a related field. Hands-on experience with analytical method development for synthetic molecules (e.g., small molecules, PEG, peptides, and/or oligos), i.e. electrophoresis, HPLC, MS, UV spectroscopy and associated software (e.g., Empower). Experience transferring methods to internal/external development labs, and troubleshooting. Demonstrated experience serving as an analytical lead, working with internal teams and external CDMOs. Strong written and verbal communication skills, including the ability to present data clearly to diverse audiences. Ability to work with minimal guidance and collaboratively across cross-functional teams, with strong attention to detail and documentation practices. Demonstrated initiative, learning agility, and a growth mindset in a fast-paced environment. Experience with antibodies and/or bioconjugates is strongly preferred.

#pmpd

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We have an inclusive culture that provides comprehensive benefits, which vary by location. In the U.S., benefits may include health and wellness programs (including medical, dental, vision, life, and disability insurance), fitness centers, 401(k) company match, family support benefits, equity awards, annual bonuses, paid time off, and paid leaves (e.g., military and parental leave) for eligible employees at all levels! For additional information about Regeneron benefits in the US, please visit For other countries’ specific benefits, please speak to your recruiter.
Please be advised that at Regeneron, we believe we are most successful and work best when we are together. For that reason, many of Regeneron’s roles are required to be performed on-site. Please speak with your recruiter and hiring manager for more information about Regeneron’s on-site policy and expectations for your role and your location.

Regeneron is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion or belief (or lack thereof), sex, nationality, national or ethnic origin, civil status, age, citizenship status, membership of the Traveler community, sexual orientation, disability, genetic information, familial status, marital or registered civil partnership status, pregnancy or parental status, gender identity, gender reassignment, military or veteran status, or any other protected characteristic in accordance with applicable laws and regulations. The Company will also provide reasonable accommodation to the known disabilities or chronic illnesses of an otherwise qualified applicant for employment, unless the accommodation would impose undue hardship on the operation of the Company's business.

For roles in which the hired candidate will be working in the U.S., the salary ranges provided are shown in accordance with U.S. law and apply to U.S.-based positions. For roles which will be based in Japan and/or Canada, the salary ranges are shown in accordance with the applicable local law and currency. If you are outside the U.S, Japan or Canada, please speak with your recruiter about salaries and benefits in your location.

Please note that certain background checks will form part of the recruitment process. Background checks will be conducted in accordance with the law of the country where the position is based, including the type of background checks conducted. The purpose of carrying out such checks is for Regeneron to verify certain information regarding a candidate prior to the commencement of employment such as identity, right to work, educational qualifications etc.

Salary Range (annually)